---
product_id: 23021352
title: "5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE"
brand: "hiletgo"
price: "$18.34"
currency: USD
in_stock: true
reviews_count: 8
category: "Hi Letgo"
url: https://www.desertcart.us/products/23021352-5pcs-rs232-to-ttl-converter-module-com-serial-port-board
store_origin: US
region: United States of America
---

# 3.3V~5V operating voltage Compact 33x32x16mm size MAX3232 chip for reliable RS232 to TTL conversion 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE

**Brand:** hiletgo
**Price:** $18.34
**Availability:** ✅ In Stock

## Summary

> 🔌 Power your serial projects with pro-level precision and compact style!

## Quick Answers

- **What is this?** 5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE by hiletgo
- **How much does it cost?** $18.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/23021352-5pcs-rs232-to-ttl-converter-module-com-serial-port-board)

## Best For

- hiletgo enthusiasts

## Why This Product

- Trusted hiletgo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Powerful:** Small footprint fits perfectly in tight project spaces without compromise.
- • **Trusted by Tech Pros:** Preferred by developers for networking gear, gaming consoles, and embedded projects.
- • **Plug & Play Interface:** Four-pin design (VCC, GND, RXD, TXD) for quick, hassle-free setup.
- • **Pro-Grade MAX3232 Chip:** Ensures stable, noise-free serial communication every time.
- • **Seamless Voltage Compatibility:** Works effortlessly between 3.3V and 5V systems for versatile integration.

## Overview

The HiLetgo 5pcs RS232 to TTL Converter Module features the robust MAX3232 chip, supporting a flexible 3.3V to 5V operating voltage range. Its compact design and four-pin interface make it ideal for serial communication tasks in diverse applications like gaming console modding, GPS, and embedded system debugging. Trusted by professionals for reliable, noise-free data conversion, this pack of five modules offers excellent value for developers and tech enthusiasts alike.

## Description

This product is widely used in radio modification, mobile phone brush machine, XBOX360 brush machine, GPS, car testing, DVD brush machine, hard disk repair, set-top box upgrades. Microcontroller programmed. The main parameters: Control chip: domestic new MAX3232 Working voltage: 3.3V-5V DC Working current: 6MA Power supply: external Interface: TXD, RXD, GND, VCC Overall dimensions: 33mm * 32mm * 16mm Package Included: 5 * RS232 To TTL Converter Module

Review: Solid product, though TX/RX labels are reversed from usual - I've bought multiple packs of these over the past few years. They all have been consistent with each other, with the expected chips, even years between purchases. I develop software for networking equipment and use them for serial consoles on many various switches, routers, and access points. They're reliable and work well. The people saying the TX/RX labels are reversed are correct. Those saying they aren't don't seem to understand how they're supposed to function. TX/RX on TTL adapters normally refers to the signal direction relative to the adapter. So the normal circumstance is you connect a UART header's TX to the RX of the TTL adapter (UART sends, TTL receives), and the UART header's RX to the TX of the TTL adapter (UART receives, TTL sends). With this adapter, its labels refer to where you plug it in on the UART header. Adapter's RX to UART RX and adapter's TX to UART TX. The only possible downside I see is you can't use only TX, RX and GND with these, unlike most USB to TTL adapters. Voltage is required for the adapter to function, and it has a red LED which illuminates when it receives power. That's fine for my use case, but might not be for others.
Review: When wired correctly it works great! - So, I used this TTL to connect my scale with a RS232 output. Then connected to Arduino Nano for the logic functions of reading the scale info and then only printing the weight value from the scale in numeric and barcode format. It’s a dedicated solution I was targeting for and succeeded. After finalizing the code and electronic connections I then 3d printed a case to enclose all components. Turned out really nice. The printer uses the hardware serial rx and rx while the scale uses software serial1 for the scale rx and rx.

## Features

- HiLetgo MAX3232 RS232 to TTL Converter Module
- Operating Voltage: 3.3V~5V
- Four Interface: VCC, GND, RXD, TXD
- Communication Chip: MAX3232 chip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LPK0Z9A |
| Best Sellers Rank | #54 in Serial Adapters |
| Brand | HiLetgo |
| Color | black |
| Customer Reviews | 4.3 4.3 out of 5 stars (142) |
| Date First Available | July 11, 2014 |
| Hardware Platform | Xbox 360 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.317 ounces |
| Item model number | 3-01-0136 |
| Manufacturer | HiLetgo |
| Package Dimensions | 4.8 x 3.86 x 1.5 inches |

## Product Details

- **Brand:** HiLetgo
- **Color:** black
- **Compatible Devices:** Cellular Phones, GPS
- **Connector Type:** RJ45
- **Item Weight:** 0.01 Kilograms

## Images

![5pcs RS232 to TTL Converter Module COM Serial Port Board MAX3232 MAX232CSE - Image 1](https://m.media-amazon.com/images/I/61wgicM0NZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid product, though TX/RX labels are reversed from usual
*by C***B on August 1, 2025*

I've bought multiple packs of these over the past few years. They all have been consistent with each other, with the expected chips, even years between purchases. I develop software for networking equipment and use them for serial consoles on many various switches, routers, and access points. They're reliable and work well. The people saying the TX/RX labels are reversed are correct. Those saying they aren't don't seem to understand how they're supposed to function. TX/RX on TTL adapters normally refers to the signal direction relative to the adapter. So the normal circumstance is you connect a UART header's TX to the RX of the TTL adapter (UART sends, TTL receives), and the UART header's RX to the TX of the TTL adapter (UART receives, TTL sends). With this adapter, its labels refer to where you plug it in on the UART header. Adapter's RX to UART RX and adapter's TX to UART TX. The only possible downside I see is you can't use only TX, RX and GND with these, unlike most USB to TTL adapters. Voltage is required for the adapter to function, and it has a red LED which illuminates when it receives power. That's fine for my use case, but might not be for others.

### ⭐⭐⭐⭐⭐ When wired correctly it works great!
*by R***L on July 9, 2024*

So, I used this TTL to connect my scale with a RS232 output. Then connected to Arduino Nano for the logic functions of reading the scale info and then only printing the weight value from the scale in numeric and barcode format. It’s a dedicated solution I was targeting for and succeeded. After finalizing the code and electronic connections I then 3d printed a case to enclose all components. Turned out really nice. The printer uses the hardware serial rx and rx while the scale uses software serial1 for the scale rx and rx.

### ⭐⭐⭐⭐ They work fine and were a decent deal.
*by M***. on January 2, 2026*

They worked for my needs, seem to be of a good quality. I'll update this review if I notice any issues, but they are working as expected for now.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/23021352-5pcs-rs232-to-ttl-converter-module-com-serial-port-board](https://www.desertcart.us/products/23021352-5pcs-rs232-to-ttl-converter-module-com-serial-port-board)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-20*